Horse-power.



PATENTED DEC. 29, 1903.

J. & c. VAV RA. HORSE POWER.

APPLICATION FILED APR. 25. ,1903.

a sums-SHEET 1 N0 MODEL.

IN VENTOl-ZS I I W/ TNESSES: W %Z3.

No. 748,443. Y PATENTED DEC. 29, 1903.

J. & 0. VAVRA. HORSE POWER.

APPLICATION FILED APR. 25, 1903.

N0 MODEL. 3 SHEETS-SHEET 2.

9 3 WITNESSES INVENTOHS W I (fiaz-Zes 7611a, ag z M k UNITED STATESPatented December 29, 1903.

PATENT ()FFICE.

, JOSEPH VAVRA AND CHARLES VAVRA, OE PARK RIVER, NORTH DAKOTA.

HORSE-POWER.-

SPECIFICATION forming part of Letters Patent N 0. 748,443, datedDecember 29, 1903.

Application filed April 25. 1903.

and residents of Park River, in the county of Walsh and State of NorthDakota, have invented new and useful Improvements in Horse-Powers, ofwhich the following is a full, clear, and exact description.

This invention relates to certain novel and useful improvements inhorse-power devices, and has particular application to one especiallyadapted for use in loading hay and elevating material from the ground toa desired point at a height above the same.

The principal object of our invention is to provide a device which willbe extremely simple in its construction and operation, one which may beassembled and put into use with ease and facility and may be moved fromplace to place as required.

With these and other objects of a similar nature in view the inventionconsists in the construction, combination, and arrangement of parts asis described in this specification, delineated in the accompanyingdrawings,

and set forth in the appended claims.

Reference is to be had tothe accompanying drawings, forming a part ofthis specification, f

in which similar characters of reference indicate corresponding parts inall the figures.

Figure l is a view in side elevation of a mechanism embodying ourimprovement. Fig. 2 is a top plan view of the same. Fig. 3 is atransverse vertical sectional view taken through the axis ofthe'machine. Fig. 4 is a bottom plan view of the platform or frame ofthe machine, and Fig. 5 is an enlarged sectional detail view of aportion of the revolving wheel and pawl or rack mechanism for checkingthe revolution of said wheel.

Referring now to the drawings in'detail, A designates the frame or baseof the machine, which may be of any suitable character, but ispreferably formed so that the machine may be easily carried from placeto place. Upon this frameA is mounted a hub 1, adapted to assist insupporting a tubular spindle 2, upon which is adapted to berevolublymounted the main wheel 3 of the machine, which is provided with .aperipheral groove 4c of sufficient depth to permit a rope ofconsiderable length to be wound thereon, the wheel being Serial No.154,319. (110 model.)

. provided with series of projections 3 to prevent the rope from beingdisplaced. Upon the upper portion of the aforesaid tubular spindle 2 issecured a pole 5, adapted to act asa counterbalance, such pole beingprovided at one end portion with a number of apertures 6, which permitthe adjustment of a movable weight 7 on the pole. The counterbalance isfurther providedon its under surface with a small roller or caster 8,adapted to run upon a track formed of a flat metallic ring 9, which issecured to the upper surface of the grooved wheel 4. The part of thecounterbalance-pole which is mounted upon the spindle 2 is widened, asat 10, and is adapted to have mounted thereon, so as to extend upwardlytherefrom, a frame 11, having an open portion formed by a collar 12 atthe top thereof, such collar being designed for a purpose hereinafterdescribed. In order to secure the pole 5 upon the tubular spindle, acollar 13 is screwed on the end of said spindle above the widenedportion of the pole, while a similar wearing-collar 14 is interposedbetween the under surface of the broadened portion of the pole and thetop of the wheel.

Hinged to the end of the broadened part of the counterbalance-pole, asat 15, is a sweep '16, which has secured at its extreme outer end 17 awhiffletree' 18 to permit a horse to be'harnessed to said sweep. Thissweep is also provided with a caster or roller 19, adapted to run uponthe track 9, the sweep extending ina radially-opposite direction to thecounterbalancing-pole. Extending upward from the top surface of thewheel are a nu mber of catches or lugs 20, adapted to be engaged by thesweep when the horses are moving the same, the construction being suchthat the large wheel 3 will be revolved, said wheel bearing upon aseries of small rollers or wheels 21, mounted in bearings 22 on top ofthe plat- 5 form A.

Arranged adjacent or contiguous to the framework is a scaffold orderrick comprising a vertical standard 23 and a horizontal crossbar 24:,the aforesaid bar and the standard being connected through the medium ofa brace 25. Pivoted to the brace 25 is an arm 26,having connectedthereto one end of a ca ble or rope 27, which passes through pulleys 2828, secured to the horizontal cross-bar 24, the other end of said ropepassing down through the collar 12 in the frame 11 and being secured toone end of a lever-arm 29, pivoted at to the sweep, the free end of saidarm forming the support for the wheel or roller 19 of the sweep. Inorder to raise or lower the sweep so as to release it from engagementwith the vertically-mounted lugs on the wheel or winding-drum,it is onlynecessary to move the arm 26 downward, which will cause the rope 27 topull up on the leverarm 29 and press said lever-arm down at itsfulcrum-point 30 and elevate the sweep sufficientlyto pass over saidlugs. In order to retain the arm 26 in any position, there is secured tothe vertical standard 23 a toothed rack 31, the handle portion of thearm being adapted to engage with any one of the teeth, which willprevent the handle from flying upward. To any suitable part of therevolving wheel or drum-is attached one end of a rope or cable 32, whichextends around pulleys 33 33, secured to the side of the frame, and fromthence to any desired point. This rope 32 is adapted to be connected atits free end to a hay-fork or to the article to be raised and may be ofany desired length. At a point adjacent to the frame the hoisting-ropeis preferably covered by a bridge 34, so that the horse or draft-animalwill not trip upon the rope when walking in a circle.

In the case of an accident to the harness or to the draft-animal it maybe found desirable to stop the revolution of the wheel or drum, andthereby prevent the unwinding of the rope, and for this purpose we havesecured to the under side of the wheel or drum a toothed ring or rack35, which ring is nearly equal in circumference to the wheel itself.Mounted upon the base A, directly beneath the hollow spindle 2,are thesmall supports 36 36,adapted to have pivoted thereto oppositely-arrangedbell-crank levers 37 37, while at points on the under surface of theupper portion of the frame,near the sides thereof,are securedsimilarsupports 3838, also havingsmall bell-crank levers 39 39 securedthereto and extending in opposite directions. The lever 39 is connectedat itsdepending arm to the verticallyextending arm of the lever 37through the medium of a rod 40, while the lever 39 is similarlyconnected to the lever 37 by a rod 41. To the horizontal arms of thelevers 39 39 are secured pins 42 and 43, which extend upward throughapertures formed in the topofthe frame or platform and are connectedwith dogs or pawls 44 45, which are in turn adapted to be broughtintoengagement with the teeth of the circular rack 35. To accomplish thispurpose, the horizontal arms of the levers 37 37 are connected with theleverarm 29 through the medium of a cable, wire, or the like 47 and aswivel, (not shown,) said cable or wire passing up through the tubularspindle 2. It will be observed by this construction that whenthe sweepis elevated by pulling down the lever-arm 26 the bell-crank levers 37 37will be actuated with the leverarm 29 and its connection and will throwthe pawls 44 45 out of engagement with the circular rack 35, smallsprings 46 being coiled about the arms 42 and 43, said springs tendingto press the pawls upward into engagement with the teeth.

From the above description,read in connection with the drawings,theoperation of ourimproved device will be readily apparent. Thehoisting-rope 32 being connected to the artiole to be elevated, thedraft-animal, which is harnessed at the whifiietree 18, is driven in acircle, and the wheel or winding-drum revolving the rope will be woundon the periphery of said drum. When the bale or article has beenelevated the desired height, the arm 26 is pulled downward, as beforedescribed, to elevate the sweep sufficiently to release it from contactwith the vertical lugs on the upper surface of the drum, and therebypermit the rope which is wound on said wheel to be paid out. The loadmay then be removed and the rope returned and the operation resumed.When the rope has been paid out, the arm is released from its notch, andthe lever on the sweep being likewise released the latter will againdrop into position of contact with the lugs on the wheel and theoperation of winding the rope will be resumed. It will be observed thatthe arrangement of the circular toothed rack and the pawl mechanism,hereinbefore described,will prevent the rope from accidentallyunwinding.

The many advantages incident to our improved sweep will be evident.Loads maybe easily and speedily elevated and handled by using ourimprovement, and in addition to being adapted for raising hay and thelike it will be found exceedingly convenient for builders andcontractors for raising mortar and bricks to the upper stories ofbuildings.

While we have shown and herein described one particular embodiment ofour invention, it is of course to be understood that we do not limitourselves to the precise details of construction shown herein, as theremay be modifications and variations in certain respects withoutdeparting from the essential features of the invention or sacrificingany of the advantages thereof.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. The combination of a frame, a windingdrumrevolubly mounted thereon, a hoistingrope connected to said drum, asweep for turning said drum, a lever pivoted to said sweep, a derrick,an arm pivoted to said derrick, and a rope connecting said arm with thesweep, substantially as set forth.

2. Thecombination ofabase-frame,awinding-drum revolubly mounted thereon,lugs formed on said drum, a sweep pivoted above said drum and normallyadapted to contact with said lugs, whereby when the sweep is moved thedrum will be revolved, a hoistingrope, a derrick, a lever pivoted tosaid sweep, a cable connected to said lever, and means on the derrickfor actuating the rope and lever to move the sweep out of engagementwith the lugs of the drum, thereby permitting the unwinding of the rope,substantially as set forth.

3. Thecombination of a frame, a spindle journaled thereon a winding-drumrevolubly mounted on said spindle, a hoistingrope adapted to be wound onsaid drum, a counterbalance-pole mounted on the spindle above said drum,a sweep hinged to said pole, a lever pivoted to said sweep and adaptedto be actuated to move the sweep out of working engagement with thedrum, a toothed rack on said drum, and means engaging with said rack forstopping the revolution of the drum,

such means comprising bell-crank levers pivoted to the top and bottom ofsaid frame, rods connecting said levers, springtensioned pawls or;detents connected with the top levers, and a connection between thelevers at the base of the frame and the lever of the sweep,substantially as set forth.

4. The combination of a frame, a windingdrum revolubly mounted thereon,a hoistingrope adapted to be wound on said drum, a sweep pivoted abovesaid drum and movable into and out of working engagement therewith, aderrick, and means operated from the derrick for moving said sweep intoand out ofworking engagement, such means comprising a lever pivoted tosaid sweep, an arm pivoted to said derrick, a notched strip adapted toengage and hold said arm, and a cable conmeeting the lever of the sweepand the arm on the derrick, substantially as set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOSEPH VAVRA. CHARLES VAVRA. Witnesses:

JAMES LARNACH, JOHN H. OWEN.

